active alongside bicycle bike crash-helmet cycle cycling cyclist energetic energy environmentally-friendly exercise fit fitness helmet helmets movement moving on-the-move outdoors outing path pedal-power pedalling pedals pushbike recreation river riverside safety safety-helmet spokes sport sporty transport transportation travel travelling wheels women adults backpacks bicycles bikes crash-helmets cyclists pathway pushbikes safety-helmets shade shadows sunlight sunshine track trees youth boy colored colorful colors coloured colourful colours commuters commuting father grab-handles grip gripping handholds handle hanging-strap held holding-on man passengers people railway secure security son standing standing-passengers strap-hung-handles straps suspended-strap toddler train transit travelers traveling travellers views wait waiting window window-views adult child confidence learning supervised trainer-wheels youngster access-denied access-limited advice alert appropriate-behavior appropriate-behaviour ban banned be-careful beware bicycles-prohibited bylaws communicating communication concern cycling-prohibited danger dangerous denied directions information informing law legal no-bikes no-cycling no-wheels not-allowed not-permitted pedestrian-care pedestrian-safety permission-denied prohibited prohibition prohibitions restricted restriction restrictions risk risks rules sign signs symbol warning warning-sign watch watch-out